if you get a stall be prepared too buy stuff to get traction ,more money !its the game but true ,if you cant get traction it wont do you any good .if you go l/ts and exhaust you will definately feel it ,it was 1 of my favorite mods [the lts] i felt it immediately[seat of the pants feel].and u probly wont have spend any more right away .as u can afford it .i say weigh it out and see .converter is awesome diff too,but like i said you will have traction issues unless you already have dealt with it.good luck
mods:2004 sierra ext sb,20s ,big brake kit w,hawk pads,air bagged,2006 6.0 lq4 swap,vortec supercharged10psi, air to water intercooled w/ dual electric fans on it ,snow meth injection kit,60lbers, e-fans ,big radiator swap ,cam 218 /222 548/550 comp .hardened prs .1.85 comp roller rockers ,guideplates ,crane double springs,trans 4l65e built .pacesetter l/ts true duals w/x pipe and magnaflows,14 bolt rearend swap ,3.73s,aroemotive fuel pump system w/elec.fuel controller and bypass regulator a/n fittings, taylor 10.5s interceptor gauge,aem w/b a/f ,autometer boost/vac NELSON 93 OCTANE TUNED .